JPS5698331A - Overload protecting device for electric machine - Google Patents

Overload protecting device for electric machine

Info

Publication number
JPS5698331A
JPS5698331A JP13366680A JP13366680A JPS5698331A JP S5698331 A JPS5698331 A JP S5698331A JP 13366680 A JP13366680 A JP 13366680A JP 13366680 A JP13366680 A JP 13366680A JP S5698331 A JPS5698331 A JP S5698331A
Authority
JP
Japan
Prior art keywords
electric machine
charge element
monitoring circuit
linear network
limit value
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP13366680A
Other languages
Japanese (ja)
Inventor
Furitsutsu Kuniyutsuta Aideru
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Publication of JPS5698331A publication Critical patent/JPS5698331A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H6/00—Emergency protective circuit arrangements responsive to undesired changes from normal non-electric working conditions using simulators of the apparatus being protected, e.g. using thermal images

Landscapes

  • Emergency Protection Circuit Devices (AREA)
  • Protection Of Static Devices (AREA)
  • Control Of Voltage And Current In General (AREA)
  • Stopping Of Electric Motors (AREA)

Abstract

1. An overload protection arrangement for an electric machine comprising a monitoring circuit (4) for the production of a measured variable (Um) dependent upon the current of the electric machine, comprising a non-linear network (9) connected following the monitoring circuit (4) and a limit value generator (11) connected to the monitoring circuit (4), a measuring device (20) possessing a measuring component (21) which contains an RC-charge element (23, 24) connected following the non-linear network (9) and the limit value generator (11), and an analysing device (44) connected to outputs of the measuring device (20) and the limit value generator (11), characterised in that a further non-linear network (18) is connected to the monitoring circuit (4), the measuring device (20) comprises a further measuring component (22) having a further RC-charge element (28, 29), and the further measuring component (22) has its input connected to the further non-linear network (18) and its output connected to the one RC-charge element (23, 24) in such manner that the voltage at the capacitor (29) of the further RC-charge element (28, 29) is transferred to the capacitor (24) of the one RC-charge element (23, 24).
JP13366680A 1979-09-28 1980-09-25 Overload protecting device for electric machine Pending JPS5698331A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2939938A DE2939938C2 (en) 1979-09-28 1979-09-28 Overload protection arrangement for an electrical machine

Publications (1)

Publication Number Publication Date
JPS5698331A true JPS5698331A (en) 1981-08-07

Family

ID=6082504

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13366680A Pending JPS5698331A (en) 1979-09-28 1980-09-25 Overload protecting device for electric machine

Country Status (4)

Country Link
EP (1) EP0026731B1 (en)
JP (1) JPS5698331A (en)
AT (1) ATE4013T1 (en)
DE (1) DE2939938C2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2686081C1 (en) * 2018-07-23 2019-04-24 Федеральное государственное бюджетное образовательное учреждение высшего образования "Уфимский государственный нефтяной технический университет" Device for adaptive current cutoff of electric motors

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2488458A1 (en) * 1980-08-04 1982-02-12 Telemecanique Electrique THERMAL PROTECTION CIRCUIT OF AN ELECTRIC MOTOR COMPRISING TWO TIME-CONSTANT ORGANS
DE3237802A1 (en) * 1982-10-12 1984-04-12 Siemens AG, 1000 Berlin und 8000 München OVERLOAD PROTECTION FOR AN ELECTRICAL MACHINE WITH SHORT-TERM RUNNING AGAINST FREQUENT STARTING
DE4121610C2 (en) * 1991-06-29 1993-10-14 Kloeckner Moeller Gmbh Tripping and signaling device for an additional module, especially for earth fault detection
DE4401447A1 (en) * 1994-01-19 1995-07-27 Rhebau Rheinische Beton Und Ba Protection circuit for pump motors
DE19748627B4 (en) * 1997-11-04 2013-07-18 Abb Ag Electronic overload relay
DE102007041247B4 (en) * 2007-08-30 2009-07-16 Abb Ag Device, system and arrangement for signal processing of a voltage
CN101976816B (en) * 2010-10-18 2013-02-27 吕纪文 Overload protection method and device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3105920A (en) * 1961-09-15 1963-10-01 Gen Electric Protective device
US3942074A (en) * 1974-09-27 1976-03-02 General Electric Company Static overcurrent relay
DE2611178C3 (en) * 1976-03-17 1978-12-21 Hartmann & Braun Ag, 6000 Frankfurt Dependent electronic overcurrent time relay
DE2653574C3 (en) * 1976-11-25 1983-02-10 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Tripping device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2686081C1 (en) * 2018-07-23 2019-04-24 Федеральное государственное бюджетное образовательное учреждение высшего образования "Уфимский государственный нефтяной технический университет" Device for adaptive current cutoff of electric motors

Also Published As

Publication number Publication date
DE2939938C2 (en) 1984-05-30
EP0026731B1 (en) 1983-06-29
ATE4013T1 (en) 1983-07-15
DE2939938A1 (en) 1981-04-09
EP0026731A1 (en) 1981-04-08

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